https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119376
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- here is a better example: ``` void f(int *); inline __attribute__((always_inline)) void h(int *b) { [[clang::musttail]] return f(b); } void g(int *b) { int a; h(&a); [[clang::musttail]] return h(b); } ``` clang accepts this and preservees the musttail on the last h. BUT note this will be rejected by GCC because a escapes still (which I think it is a good thing).